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OptiPlex 7490 All-In-One Service Manual

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Installing the middle frame

Prerequisites

If you are replacing a component, remove the existing component before performing the installation procedure.

About this task

The following image indicates the location of the middle frame and provides a visual representation of the middle frame installation procedure.

Image: Installing the middle frame

Image: Installing the middle frame

Steps

  1. Slide and align the middle frame to the slots on the display-assembly base, then snap the middle frame into place on the display-assembly base.
  2. Replace the 17 screws (M3x5) to secure the middle frame to the display-assembly base.

Next steps

  1. Install the display panel.
  2. Install the antenna modules.
  3. Install the side-I/O board.
  4. Install the PSU fan.
  5. Install the PSU.
  6. Install the microphones.
  7. Install the power-button board.
  8. Install the system board.
  9. Install the camera assembly.
  10. Install the speakers.
  11. Install the rear-I/O bracket.
  12. Install the bottom cover.
  13. Install the wireless card.
  14. Install the hard drive.
  15. Install the system-board shield.
  16. Install the back cover.
  17. Install the cable cover (optional).
  18. Install the stand.
  19. Follow the procedure in After working inside your computer.

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